Manley Platinum Series Lightweight Pistons, 28cc Dish [Bore Size 3.700 | Rod Length 5.850 | Stroke 3.750 | Compression Distance 1.200 | 42cc 9.50 | 51cc 8.62 | 52cc 8.53 | Piston Wt/Gms 389 | Piston & Pin Wt/Gms 477] (FORD 4.6L 2V & 4V) : COLORADOSPEED - LATE MODEL DOMESTIC (AMERICAN MUSCLE) | IMPORT (EUROPEAN | SPORT COMPACT) AUTOMOTIVE PERFORMANCE PARTS